in Chigmit Mts. trends N on Roscoe Peak, at head of Iniskin Bay, Aleutian Range
Name derived from Roscoe Peak; published in 1958 by U.S. Geological Survey (USGS).
Roscoe Glacier, Tongue Glacier,
Mountains:Brown Mountain, Mount Eleanor, Range Peak, Roscoe Peak, Sugarloaf Mountain, Tonnie Peak,
Mountain Passes:Mountain Ranges:Ridges:Rivers:Chinitna River, Iniskin River,
Streams:Antitonnie Creek, Clearwater Creek, Dam Creek, Forky Creek, Holland Creek, Left Fork West Glacier Creek, Low Creek, Marsh Creek, Right Branch, Right Fork West Glacier Creek, Roscoe Creek, Silver Salmon Creek, Tonnie Creek, Tooie Creek, Trail Creek, West Glacier Creek, Wrong Branch, Wrong Branch Trail Creek,
Waterfalls: